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Spindle Nut Torque Specs

Posted

I'm replacing the wheel hubs/bearings on my 2001 2wd 2500.

What are the torque specs for the big nut?

Thanks!

 

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  • IBMobile
    IBMobile

    280 ft-lbs

  • trreed
    trreed

    If you go under spec, you don't pre-load the bearings correctly.  And tapered roller bearings usually use barrel shaped rollers in the races, so it's important to correctly preload the bearing so the

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I had to get a cheater bar on the torque wrench and then got all my neighbors to jump up and down on it to get it there.  280lbs is alot! 

What happens if you only torque it to 250 or even 200. I believe that spindle and the nut actually keep the bearing from coming apart, but I have used a 20-ton press to try and get it apart and all I did was bent half inch brackets I made to support the bearing, never did get them separated, I think 50 ton may do it

Edited by Dieselfuture
Autocorrect

If you go under spec, you don't pre-load the bearings correctly.  And tapered roller bearings usually use barrel shaped rollers in the races, so it's important to correctly preload the bearing so the load is carried squarely by the face of the roller.  Otherwise the load is carried off-center and wears quicker.

Edited by trreed

    • Like 1

    I think there may be misunderstanding here on torque, I believe it's 180 and not 280 on axle nut and 122 on 12 point bolts that hold the hub. 

    I agree. I'd have to look to be sure but I remember it being just more than my 150lb torque wrench. 280 seems like too much.

     

     

     

    Yeah here we go

    image.png.7f27aac22a1f15658f8c4638b525260e.png

     

    Edited by dave110

    1 hour ago, Mopar1973Man said:

    Are we talking seal unit bearing type or cone and race bearings?

     

    I think I do remember it only calling about 220 ft.lbs when I put the freespin kit on with the individual replaceable cone bearings...not the unit bearings. 

    I apologize, I seen 2wd when first read the post, but later was thinking when I did mine I thought it was 180, we'll @dave110 showes that on the 4x4 and @IBMobile is showing 280 for 2wd, so for this application 280 is the right number. Sorry for bringing this up, I got cornfused. That's nuts though 280 on a 2wd and 180 on 4x4, almost doesn't make sense. 

    This is my tourq wrench for most big nuts. Should hit 180 or 220 easily. 

    One tool I dont leave home without

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    Welcome To Mopar1973Man.Com LLC

    We are privately owned, with access to a professional Diesel Mechanic, who can provide additional support for Dodge Ram Cummins Diesel vehicles. Many detailed information is FREE and available to read. However, in order to interact directly with our Diesel Mechanic, Michael, by phone, via zoom, or as the web-based option, Subscription Plans are offered that will enable these and other features.  Go to the Subscription Page and Select a desired plan. At any time you wish to cancel the Subscription, click Subscription Page, select the 'Cancel' button, and it will be canceled. For your convenience, all subscriptions are on auto-renewal.